Black Screen During Screen Sharing Follow

If you encounter a black screen during your screen share meeting, it could be caused by automatically switching graphic card (such as an Nvidia card).
How to Fix 
  1. Open the Nvidia Control Panel in the Windows Control Panel.
  2. Click Manage 3D Settings.
  3. Click on Program Settings under I would like to use the following 3D settings.
  4. Under Select a program to customize: add Cpthost.exe from the Zoom bin directory.
  5. Click Add.
  6. Find Cpthost.exe from the Zoom bin directory (located at C:/>Users>YOURUSERNAME>AppData>Roaming>Zoom>bin).
  7. Click Add Selected Program.
  8. Select Integrated graphics
  9. Click Apply.
  10. Try screen sharing again with Zoom.
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